PCA9554PWR - Texas Instruments

Manufacturer Part Number

PCA9554PWR

Manufacturer

Texas Instruments

Introduction

The PCA9554PWR is an 8-bit I/O expander from Texas Instruments, designed for I2C and SMBus interfaces, commonly used to increase the number of I/Os in microcontroller applications.

Product Features and Performance

8 I/O pins

I2C and SMBus interface compatibility

Interrupt output feature

Power-on Reset (POR)

Push-pull output type

Maximum clock frequency of 400 kHz

Operational voltage range from 2.3V to 5.5V

Operating temperature range from -40°C to 85°C

Surface mount, 16-TSSOP package

Product Advantages

Flexible voltage range for varied application requirements

High integration with 8 I/Os to expand microcontroller capabilities

Suitable for low power and compact designs due to push-pull outputs

Key Technical Parameters

Number of I/O: 8

Clock Frequency: 400 kHz

Voltage Supply: 2.3V to 5.5V

Current Output Source/Sink: 10mA, 25mA

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Durable operating temperature range

Reliable power-on reset functionality

Compatibility

Compatible with I2C and SMBus interfaces

Application Areas

Used in microcontroller expansion

Suitable in consumer electronics, automotive, and industrial applications

Product Lifecycle

Not recommended for new designs

Contact Texas Instruments for replacement or upgrade options

Several Key Reasons to Choose This Product

Integration of 8 I/Os saves board space and reduces system complexity

Flexible use across a wide range of supply voltages

Suitable for harsh temperature environments

Availability of interrupt output to handle input changes effectively